JM_PCI_CTL0_IDEDMA_CFG
ctl0 &= ~(JM_PCI_CTL0_PCIIDE_CS | JM_PCI_CTL0_IDEDMA_CFG);
ctl0 |= JM_PCI_CTL0_PCIIDE_CS | JM_PCI_CTL0_IDEDMA_CFG;